Patent Model - Improved Mercurial-Gas Regulator for Nitrous-Oxide Apparatus

Maker and role
John Coolidge, Patentee
 Production date
Nov 23 1869
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Object detail

Media/Materials
Glass, copper
Measurements
21 x 17 x 2 1/2" (53.3 x 43.2 x 6.4cm)
Description
The object of Coolidge's patent "is to regulate the amount of illuminating-gas admitted to a burner, which heats a retort or flask containing material for manufacturing nitrous-oxide or other gas evolved by heat, and which may be passed through water for purification." (Patent Number 97,051)
Collection
Rothschild Patent Model Collection
Object number
2015.14.1116
Currently on display?
No
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